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A. HERING. TYPEWRITER ACCENT KE Y ATTACHMENT.

APPLICATION FILED NOV. 17. 19I9. Patented Jan. 18, 1921.

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A. HERING. TYPEWRITER ACCENT KEY ATTACHMENT APPLICATION FILEDJJOV' l7,I919.

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Pawnte, Jam. 18, 3921 UNITED STATES ALFONSO HERING, OF BROOKLYN; NEWYORK.

TYPEWRITEB ACCENT-KEY ATTACHMENT.

Application filed November 17,1919. Serial No. 338,518.

To all evil om it may concern:

Be it known that 1, .ALroNso Hnmno, a citizen of Chile, South America,and a resident of llrooklyn, in the county of Kings and State of NewYork, have invented certain new and useful improvements in Typewriterilccentdiey Attachments, of which the following is a specification.

The principal object of this invention is to provide a simple, practicaland inexpensive attachment designed to permit the printing of variousaccent marks, as used particularly in foreign composition, without thenecessity of back-spacing or w1th regard to the position of the key thatcarries the accent mark on the key board.

Another object is in the provision made i for quickly andconvenientlyattaching the device to models of the well known itemington typewriterswithout having to disassemble but few of the machine parts.

A third object is in the means employed for connecting a number of keyswhen a plurality of accent marks aredesired;

These objects are attained by the novel construction and combination ofparts hereinafter described, and shown in the accompanying drawings,forming a material part of this disclosure, and in which Figure 1 is apartial sectional and side elevational view showing the application ofthe invention and its relating parts.

Fig. 2 is a partial sectional view taken on line 2-2 of Fig. 1. i

Fig. 3 is a perspective view of the attachment in a relatively assembledposition, and

Fig. t is a perspective View of the dog actuating lever, showing it aschanged from its initial form.

Referring to the drawingsin detail, the numeral 10 designates a keylever pivotally secured at the rear end upon the rod 11 and held theretoby the pull of the spring 12.

A universal rocker shaft 14 is initially operated by the bell-cranklever arm 15, by

the universal bar 16, when the key lever 10 is depressed, and hassecured upon it the ribbon vibrating arm 17 to wh ch is secured theescapement arm 18, having upon 1ts outer end a hooked element 20designed to engage the forked end 22 of the dog rocker link 24.

The forked end 25 of the link is pivotally engaged with the escape lever26, and attached to the escapement dogs 28 which are pivotally mountedat the point 30 to the machine frame.

A rocker rod 35 is provided with angularly extending arms 35' which arerotatably mounted upon the universal rocker shaft'l land held from sidemovement by the collars 36 clenching the shaft 14.

An angulanupturned arm 37 fixed to the rod 85, terminating in theabruptly bent projecting arm 38, parallel with the rod 35, is designedto contactably engage the forked end element 22 the link 24 and by adownward movement, imparted by a quarter turned double end hook 4:0,engaged at its lowerend with the key lever 10, the element 22 is pushedoutward away from the hook end 20 of the escapement arm 18, which actiondisconnects the link 24: from its normal position and prevents'operationof the escapement mechanism. The escapement arm 18, prior to attachmentof the device has the outer prong 21 out off, as best shown in Fig. 4..I

A wire guide 44: is rigidly secured upon the arm 18, the guideprojecting rearward and terminating in an abrupt downward bend at,positioned within the forked element 22, acting'as a guide for directingthe 7 return of the link 24: to its normal position,

the return being accomplished by the pull of the U shaped spring 415,secured upon the ribbon feed rod 46, upon releasing the key lever 10.

Coincident with releasing the key lever 10, the rocker rod 35 is drawnupward and away from the link element 24 by the pull of the tensionspring 18, secured at one end to an eye 49 formed with one of the rodarms 35, and having its other end attached to a pro jecting wire arm 50,secured to the type bar segment 52 by the screw 53.

In operation, upon depressing any key lever connected to type-barscarrying accent characters, the rocker arm 37 is drawn down ward by thedouble hooked connecting wires, causing the outwardly projecting element38 of the rocker rod to engage with and push from its normal positionthe escapement connecting link, thus breaking the me chanical connectionwith the escapement mechanism and rendering the carriage feedinoperative, but permitting the ribbon vibrator mechanism to function inthe regular manner and allow the printing of the accent mark.

Ag releasing the key lever effects no car- Specification of LettersPatent. t nt Jan. 13, 1921 r riage movement, the platen and paper arestill in position to receive in the proper place the imprint of theletter it is desired to accent.

Upon releasing the accent key the rocker frame arm is returned to itsnormal position by the upward pull of the spring 48 provided for thispurpose and attached to the wire arm secured to the machine, permittingthe escapement connecting link to assume its normal position on thelever hook, guided by the guide wire -14; attached to the lever andasslsted in its return by the looped spring engaging link and the ribbonshaft.

If a number of different accent marks are required a plurality of thedouble hooked connection wires 40 may be placed upon the rocker arm atpoints vertically alinable with the key bars connetted with the desiredaccent marks.

In assembling the hook element 21 is cut away as shown by dotted linesin Fig. 4

p and the universal rocker bar removed for the purpose of putting on therocker arm and attaching the guide wire, after which the rocker bar isreplaced.

Having thus described my invention what i cafm as new and desire tosecure by Letters Patent, is

1. In a combination with a typewriter having accent keys, a universalbar, an e scapement arm fixed on said bar, an oscillating escapenientand a link operatively conne ting said escapement and said arm, said armpermitting the removal of said link, a rod and means carried thereby forguiding said link relative to said arm, means for dis engaging said linkfrom said arm when the key levers are depressed and spring actuatedmeans for reengaging said link upon the release of the key levers.

2. In a combination with a typewriter having accent keys, an oscillatingescapement, a universal bar, a dog rocker shaft actuated by said bar anda link extending from said escapement, of a lever fixed on said rockershaft normally engaging said link, a guide for said link secured on saidlever, a rocker rod pivoted on said rocker shaft, an arm formed withsaid rocker rod contactable with said link, and operative connectionsbetween said rocker rod and the levers of said accent keys whereby uponthe depression of the levers said arm causes said rocker rod arms todisengage said link from said lever.

3. In combination with a typewriter having accent keys, an oscillatingescapement, a universal bar, a do rocker shaft actuated. by said bar andlink extending from said escapement, of a lever fixed on said rockershaft normally engaging said link, a guide for said rod pivoted on saidrocker shaft, an arm formed with said rozker rod contactable with saidlink, means for normally holding said arm in a raised position, meansactuated by the levers of said accent keys for disenga ing said arm fromcontact with said lin and means for returning said link into engagementwith said lever.

In testimony whereof I have signed my name to this specification.

ALFONSO HERING.

